Update Python to 3.9.19.

Author: freakboy3742

Makefile

@@ -16,7 +16,7 @@ BUILD_NUMBER=custom
 # PYTHON_PKG_VERSION is the version number with binary package releases to use
 # PYTHON_MICRO_VERSION is the full version number, without any alpha/beta/rc suffix. (e.g., 3.10.0)
 # PYTHON_VER is the major/minor version (e.g., 3.10)
-PYTHON_VERSION=3.9.18
+PYTHON_VERSION=3.9.19
 PYTHON_PKG_VERSION=3.9.13
 PYTHON_MICRO_VERSION=$(shell echo $(PYTHON_VERSION) | grep -Eo "\d+\.\d+\.\d+")
 PYTHON_VER=$(basename $(PYTHON_VERSION))